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Generalized-ensemble simulations enable the study of complex adsorption scenarios of a coarse-grained model polymer near an attractive nanostring, representing an ultrathin nanowire. We perform canonical and microcanonical statistical…

软凝聚态物质 · 物理学 2015-10-05 Thomas Vogel , Jonathan Gross , Michael Bachmann

We consider the properties of a self-avoiding polymer chain, adsorbed on a solid attractive substrate which is attached with one end to a pulling force. The conformational properties of such chain and its phase behavior are treated within a…

软凝聚态物质 · 物理学 2009-04-01 S. Bhattacharya , V. G. Rostiashvili , A. Milchev , T. A. Vilgis

The dilatometric investigation in the temperature range of 2-28K shows that a first-order polyamorphous transition occurs in the orientational glasses based on C60 doped with H2, D2 and Xe. A polyamorphous transition was also detected in…

The optical absorption of a many (continuum) polaron gas is derived in the framework of a variational approach at zero temperature and weak or intermediate electron-phonon coupling strength. We derive a compact formula for the optical…

强关联电子 · 物理学 2009-10-31 J. Tempere , J. T. Devreese

In this work we present the thermodynamic properties of the superconducting state in phosphorene. In particular, we have examined the electron doped ($n_{D}=1.3\times 10^{14} \rm{cm^{-2}}$) and biaxially strained (4 %) monolayer of black…

超导电性 · 物理学 2019-05-01 Kamila A. Szewczyk , Adam Z. Kaczmarek , Ewa A. Drzazga

Based on the extended optical model with the double folding potential, in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\chi^{2}$ analyses are performed of elastic scattering and…

核理论 · 物理学 2010-03-16 W. Y. So , T. Udagawa , K. S. Kim , S. W. Hong , B. T. Kim

In this work, we revisit the issue of the nature of electronic transport in nickel oxide (NiO) and show that the widely used model of free small polaron hopping, initially raised to characterize transport in high-purity samples, is not…

其他凝聚态物理 · 物理学 2019-06-26 Robert Karsthof , Marius Grundmann , Markus Arthur Anton , Friedrich Kremer

High temperature polymeric materials for electrical insulation and energy storage are needed for transformational power applications such as pulsed-power and hyrid electrical vehicles. One of the candidate materials has been polyetherimide,…

软凝聚态物质 · 物理学 2013-04-23 Enis Tuncer

Shell-model calculations of the electric dipole (E1) polarizability have been performed for the ground state of selected p- and sd-shell nuclei, substantially advancing previous knowledge. Our results are slightly larger compared with the…

核理论 · 物理学 2023-09-19 José Nicolás Orce , Cebo Ngwetsheni , B. Alex Brown

Hybrid ionic-electronic conductors have the potential to generate memory effects and neuronal behavior. The functionality of these mixed materials depends on ion motion through thin polarizable channels. Here, we explore different…

The polarization state of electromagnetic radiation scattered by atmospheric particles such as aerosols, cloud droplets, or ice crystals contains much more information about the optical and microphysical properties than the total intensity…

地球与行星天体物理 · 物理学 2019-01-08 C. Emde , V. Barlakas , C. Cornet , F. Evans , S. Korkin , Y. Ota , L. C. -Labonnote , A. Lyapustin , A. Macke , B. Mayer , M. Wendisch

An analysis of the glass transition of four materials with similar chemical structures is performed: PET, PEN and two PET/PEN blends (90/10 and 70/30 w/w). During the melt processing of the blends transesterification reactions yield block…

材料科学 · 物理学 2015-06-05 J. Sellares , J. A. Diego , J. C. Canadas , M. Mudarra , J. Belana , P. Colomer , F. Roman , Y. Calventus

Conformational phases of a semiflexible off-lattice homopolymer model near an attractive substrate are investigated by means of multicanonical computer simulations. In our polymer-substrate model, nonbonded pairs of monomers as well as…

计算物理 · 物理学 2009-07-20 Monika Möddel , Michael Bachmann , Wolfhard Janke

Localization driven by disorder has a strong influence on the conducting property of conducting polymer. A class of authors hold the opinion that disorder in the material is homogeneous and conducting polymer is disordered metal close to…

材料科学 · 物理学 2009-11-10 G. Li , P. Zheng , N. L. Wang , Y. Z. Long , Z. J. Chen , J. C. Li , M. X. Wan

We combine the ideas of scaling theory and universal conductance fluctuations with density-functional theory to analyze the conductance properties of doped silicon nanowires. Specifically, we study the cross-over from ballistic to diffusive…

介观与纳米尺度物理 · 物理学 2009-11-13 Troels Markussen , Riccardo Rurali , Antti-Pekka Jauho , Mads Brandbyge

We present exact results for the optical response in the one-dimensional Holstein model. In particular, by means of a refined kernel polynomial method, we calculate the ac and dc electrical conductivities at finite temperatures for a wide…

强关联电子 · 物理学 2007-05-23 G. Schubert , G. Wellein , A. Weiße , A. Alvermann , H. Fehske

Experimental results from mechanical viscoelastic as well as dielectric relaxation times were compared to theoretical expectations utilizing polymer scaling theory. Viscoelastic relaxation of a hydrogel at 33% relative humidity fabricated…

软凝聚态物质 · 物理学 2025-08-22 Jorge Monreal

Electrical and electrochemical processes in a bioactive soda-lime phosphosilicate glasses and in a bioabsorbable soda-lime phosphate glass during thermal poling were studied by means of thermally stimulated depolarization current…

材料科学 · 物理学 2007-09-04 C. R. Mariappan , B. Roling

Three series of tensile relaxation tests are performed on isotactic polypropylene at room temperature in the vicinity of the yield point. In the first series of experiments, injection-molded samples are used without thermal pre-treatment.…

材料科学 · 物理学 2007-05-23 A. D. Drozdov , J. deC. Christiansen

In this work, we study the emergence of polarization doping in AlxGa1-xN layers with graded composition from a theoretical viewpoint. We demonstrate that the charge conservation law applies for fixed and mobile charges separately, leading…